the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.

the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.

(quoted from post at 03:27:19 02/05/13) Do not forget to change polarity if going with an alternator. I have tractors that were switched 20-30 years ago working fine. I do not like the universal brackets.

This is the alternator bracket I am talking about. It isn't necessarily universal since it is made to fit the Farmall 123 engines. I haven't used mine yet, but it looks really nice!

Last edited by RTR on Mon Feb 04, 2013 2:48 pm; edited 1 time in total

Shorten starter life??? I have had 6 volt starters on tractors for decades and never yet had any problems with them on 12 volts. The big thing is not letting them sit and spin an engine over for long periods of time

There is no need to send people on wild goose chases for expensive 12V starters. 6V starters work just fine.

The key is, don't grind and grind and grind and grind and grind and grind and grind and grind on the starter. If the engine doesn't at least fire within 5 seconds you have an ignition or carburetor problem that needs to be addressed.

(quoted from post at 02:11:34 02/05/13)
the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.

I believe I said that it will work and should be good for several years. It does make the starter spin faster when using a 6 volt on a 12 volt system, and I'm sure puts more load on it; but it still works and will be fine just like I said. I've got PLENTY of tractors that have been done this way. I was just told (I believe on this forum) that it will shorten the life of the starter and was passing that info on so I "didn't leave anything out".

(quoted from post at 02:11:34 02/05/13)
the 6 volt starter will work but will spin much faster thus shortening the life of it. Probably be good for several years thoough. Don't forget to redo the wiring at the coil to make the wire going to distributor on the negative side of the coil instead of the positave side like it is currently becuase it is positave ground. The old voltage regulator will not be needed anymore either. Steiner has a very nice factory made alternator bracket for the 140 so your alternator will line up good and it will look clean on the tractor. Don't forget to swap out the light bulbs and you should be good.

I believe I said that it will work and should be good for several years. It does make the starter spin faster when using a 6 volt on a 12 volt system, and I'm sure puts more load on it; but it still works and will be fine just like I said. I've got PLENTY of tractors that have been done this way. I was just told (I believe on this forum) that it will shorten the life of the starter and was passing that info on so I "didn't leave anything out".

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